02-08-2013, 07:54 PM
Thanks for the replies. I tried several rounds from different groups in the ladder so I don't think it's the primer depth. I did tweek the hammer spring early on to lighten the trigger pull just a bit and it worked fine afterwards. However, I'll try playing with that again. I don'k know where the crud came from. It fell out into my hands while I was taking the BCG apart but now I can't remember at what point I noticed it. The lube on the pin was a bit heavy but I did not think it was bad enough to make a difference. Maybe that and the temp was just enough. I'm gonna run it dry at the fireing pin next time to see if it makes the difference. This pin has about 1000 rounds on it.